Patents Represented by Attorney William A. Skinner
  • Patent number: 7094837
    Abstract: Thermoplastic elastomers having the property of optical translucence are provided by incorporating syndiotactic polypropylene homopolymer into olefinic elastomers. The rubber component of the composition is at least partially cured.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: August 22, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria D. Ellul, Donald R. Hazelton
  • Patent number: 7060753
    Abstract: Thermoplastic vulcanizates having improved barrier properties, comprising a high melt flow index thermoplastic olefin resin, butyl rubber and an oligomer of isobutylene and butene.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: June 13, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sunny Jacob, Jianya Cheng, Rainer Gehnen
  • Patent number: 6846877
    Abstract: An olefinic thermoplastic vulcanizate is blended with a rubber-modified monovinylidene aromatic monomer, utilizing a flexible block copolymer as compatabilizing agent. The resulting composition demonstrates improved miscibility and bonding characteristics and increased hardness not previously achievable using unmodified thermoplastic vulcanizates.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: January 25, 2005
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Sunny Jacob, Kathleen Perevosnik, Joseph E. Pfeiffer
  • Patent number: 6825277
    Abstract: The present invention relates to a high-frequency weldable thermoplastic rubber composition, to a method of rendering non-polar thermoplastic rubbers high-frequency weldable, to a high-frequency weldable shaped article obtainable from the composition according to the invention, to a method for manufacturing said shaped articles and to a method of high-frequency welding of said articles. Furthermore, the present invention relates to shaped high-frequency welded articles obtainable by the method according to the present invention.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: November 30, 2004
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Ernst van Issum, Purushottam Agrawal, Phillip Neal, Antonius van Meesche
  • Patent number: 6790911
    Abstract: A thermoplastic vulcanizate prepared by dynamically vulcanizing a halogenated butyl rubber within a mixture that includes the halogenated butyl rubber and from about 10 to about 100 parts by weight of a crystalline thermoplastic resin per 100 parts by weight rubber, to thereby form a thermoplastic vulcanizate, where the thermoplastic resin includes a resin other than polyethylene, melt mixing the thermoplastic vulcanizate with about 5 to about 75 parts by weight of polyethylene resin per 100 parts by weight rubber, from about 3 to about 60 parts by weight of a tackifier per 100 parts by weight rubber, and from about 5 to about 250 parts by weight of a block copolymer containing at least the structure S-B/S-S per 100 parts by weight rubber, where the S block of the block copolymer has a glass transition temperature above about 25° C., the B/S block has a glass transition temperature below about 25° C.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: September 14, 2004
    Assignee: Advanvced Elastomer Systems, L.P.
    Inventors: Kathleen A. Perevosnik, Sunny Jacob, William Gary Stevenson, Curtis Waddle
  • Patent number: 6787607
    Abstract: An olefinic thermoplastic elastomer composition which includes an acrylic-modified polytetrafluoroethylene. When foamed, such compositions produce a very soft foam with improved processing properties and physical characteristics. A process of foaming and foamed articles are also disclosed.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: September 7, 2004
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Abdelhadi Sahnoune, Terry M. Finerman, Sunny Jacob, Sydney Ham
  • Patent number: 6776997
    Abstract: A combination of a low flexural modulus and low crystallinity polyolefin and a functionalized polyolefin were found to result in an olefin composition with excellent adhesion to metals and polar polymers (e.g. polyesters, polyamides, etc) especially fibers therefrom. When these two polyolefins were added to a thermoplastic vulcanizate (e.g. used to partially or fully replace the semicrystalline polyolefin of a thermoplastic vulcanizate), the thermoplastic vulcanizate was found to have the necessary adhesion to form fiber reinforced thermoplastic vulcanizate.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: August 17, 2004
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Jim Johnson, Marvin Hill
  • Patent number: 6713520
    Abstract: A foam profile prepared by a process comprising the steps of foaming a thermoplastic vulcanizate, where the thermoplastic vulcanizate is prepared by a process comprising the step of dynamically vulcanizing a rubber within a mixture that includes from about 15 to about 95 percent by weight of the rubber and from about 5 to about 85 percent by weight of a thermoplastic component based upon the total weight the rubber and thermoplastic component combined, where the thermoplastic component includes from about 65 to about 90 percent by weight of a conventional thermoplastic resin and from about 10 to about 35 percent by weight of a random propylene copolymer based upon the total weight of the thermoplastic component.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: March 30, 2004
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Abdelhadi Sahnoune, Terry M. Finerman
  • Patent number: 6667364
    Abstract: A blend of an EPDM made with VNB instead of ENB and specified melt viscosity reducers is imbued with a unique ability to form a processable blend with a polyolefin phase in which PE is present in a major amount by weight relative to PP. In the substantially fully cured vulcanizate (TPV) of the blend the ratio of PE to pEPDM is in the range from more than 1:3 up to about 1:0.6. This blend is made processable with less than 200 phr of a processing oil in presently available commercial processing equipment by using an inert melt viscosity reducer which is compatible with the pEPDM and PE phases without being substantially miscible in either. A preferred melt viscosity reducer is chosen from (a) a polyolefin selected from the group consisting of isotactic poly(1-butene), ethylene-co-1-butene, propene-co-1-butene and ethylene-co-propene-co-1-butene; (b) oils and waxes having a solubility parameter in the range from about 19.5 to 21.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: December 23, 2003
    Assignee: Advanced Elastomer Systems LP
    Inventors: Tonson Abraham, Norman G. Barber
  • Patent number: 6602589
    Abstract: A weatherseal or belt-line seal for a vehicle is formed by extrusion of an olefin-based thermoplastic elastomer or vulcanizate (first TPV) as an elongate body of arbitrary length and cross-section. The cross-section is adapted for use in a particular location in the opening of a structure to be protected against wind and rain, for example around the glass of a window in a vehicle's door, or around the opening (at the periphery) in which the door is closed, so as to present at least one sealing surface against which the glass or door may be abutted to provide a seal against the elements. A slip-coating is co-extruded onto one or more longitudinal sealing surfaces of the body; the slip-coating contains a novel compatibilizer which allows thermoplastic polyurethane (TPU) to be chemically bonded to a graft copolymer of polypropylene (PP) and a compound having two anhydride groups. The reaction product of the grafted PP and the TPU effects a thermal bond with the sealing surface of the body.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 5, 2003
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Krishna Venkataswamy, Angela Marie Person
  • Patent number: 6579944
    Abstract: A thermoplastic vulcanizate (TPV) is produced by melt blending until the volume fraction of dispersed rubber particles is greater than 0.5 preferably from 0.55 to 0.95, the remaining being the dispersed continuous plastic phase in a manner so as to develop a morphology which generates optimum elastic recovery. The majority (by volume) of large rubber particles are adjacent a small particle which is separated from one or more large particles by a critically thin, less than 0.1 $G(m)m thick, ligament of deformable plastic. When the majority of large particles evidence this morphology, as seen in a transmission electron microscope (TEM) photomicrograph, the TPV exhibits unexpectedly higher elastic recovery than if the ligaments were thicker. The foregoing is simulated in a micromechanical model which confirms, and in retrospect, predicts the observed actual elastic recovery of the TPV.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: June 17, 2003
    Assignee: Advanced Elastomer Systems LP
    Inventors: Sabet Abdou-Sabet, Kenneth Emery Kear, Mary C. Boyce, Karla Drew Shaw
  • Patent number: 6503984
    Abstract: A combination of a low flexural modulus and low crystallinity polyolefin and a functionalized polyolefin were found to result in an olefin composition with excellent adhesion to metals and polar polymers (e.g. polyesters, polyamides, etc) especially fibers therefrom. When these two polyolefins were added to a thermoplastic vulcanizate (e.g. used to partially or fully replace the semicrystalline polyolefin of a thermoplastic vulcanizate), the thermoplastic vulcanizate was found to have the necessary adhesion to form fiber reinforced thermoplastic vulcanizate.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 7, 2003
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Jim Johnson, Marvin Hill
  • Patent number: 6503619
    Abstract: The invention relates to soft touch printed labels comprising a coextruded sheet of a thermoplastic elastomer and a polyolefin.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: January 7, 2003
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Philip John Neal, Ernst Van Issum
  • Patent number: 6503985
    Abstract: A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an &agr;-olefin polymer, (ii) a copolymer of an &agr;-olefin and an &agr;-&ohgr;-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a <g′>vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: January 7, 2003
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Maria D. Ellul, Abdelhadi Sahnoune
  • Patent number: 6476132
    Abstract: A thermoplastic vulcanizate (TPV) from a blend of a first thermoplastic polyolefin, a second thermoplastic olefin and a rubber is described. The rubber is crosslinked with a hydrosilylation crosslinking agent. The second polyolefin includes at least one OR group pendant to a Si atom chemically attached via one or more intermediate molecules to said second polyolefin. R can be hydrogen or an alkyl of 1 to 8 carbon atoms. The OR groups can react with the hydrosilylation catalyst to reduce the compression set of the TPV.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: November 5, 2002
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Sabet Abdou-Sabet, Robert E. Medsker, Raman Patel
  • Patent number: 6451915
    Abstract: A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: September 17, 2002
    Assignees: Advanced Elastomer Systems, L.P., ExxonMobil Chemical Patents, Inc.
    Inventors: Maria D. Ellul, Paul E. McDaniel, Thomas L. Peltier, Jianya Cheng, Patrick Brant, Armenag H. Dekmezian
  • Patent number: 6433090
    Abstract: A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an &agr;-olefin polymer, (ii) a copolymer of an &agr;-olefin and an &agr;-&ohgr;-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a <g′>vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: August 13, 2002
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Maria D. Ellul, Abdelhadi Sahnoune
  • Patent number: 6414081
    Abstract: The invention relates to compatibilized blends comprising a non-polar thermoplastic elastomer, a polar thermoplastic polymer selected from thermoplastic polyurethane (TPU), chloro containing polymers, fluoro containing polymers, polyesters, acrylonitrile-butadiene-styrene copolymers, styrene-acrylonitrile copolymers, styrene-maleic anhydride copolymer, polyacetal, polycarbonate, polyphenylene oxide, and a suitable compatibilizer.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: July 2, 2002
    Assignee: Advanced Elastomer Systems, LP.
    Inventor: Trazollah Ouhadi
  • Patent number: 6399710
    Abstract: Random thermoplastic ethylene copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic ethylene copolymers are different from Ziegler-Natta ethylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic ethylene and those modified with Ziegler-Natta ethylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: June 4, 2002
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Terry M. Finerman, Maria D. Ellul, Sabet Abdou-Sabet
  • Patent number: 6368700
    Abstract: A weatherseal or belt-line seal for a vehicle is formed by extrusion of an olefin-based thermoplastic elastomer or vulcanizate (first TPV) as an elongate body of arbitrary length and cross-section. The cross-section is adapted for use in a particular location in the opening of a structure to be protected against wind and rain, for example around the glass of a window in a vehicle's door, or around the opening (at the periphery) in which the door is closed, so as to present at least one sealing surface against which the glass or door may be abutted to provide a seal against the elements. A slip-coating is co-extruded onto one or more longitudinal sealing surfaces of the body; the slip-coating contains a novel compatibilizer which allows thermoplastic polyurethane (TPU) to be chemically bonded to a graft copolymer of polypropylene (PP) and a compound having two anhydride groups. The reaction product of the grafted PP and the TPU effects a thermal bond with the sealing surface of the body.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: April 9, 2002
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Krishna Venkataswamy, Angela Marie Person